I haven't verified that bullet, but I have fired the .308 165 XBT and .284 150 XBT at 1000 yards and both their B.C.'s were right on the money according to my Sierra program. Barnes seems to under-rate their B.C.'s compared to other manufacturers, which gives me confidence that they are not selling a bill of goods. BTW, I didn't know their 168 BC was that high compared to the .38 for the 165. That is a huge increase. Is it a secant ogive?